#282B3F

#282B3F

Color Values

HEX

#282B3F

RGB

40, 43, 63

HSL

232.2, 22.3%, 20.2%

HSV

232.2, 36.5%, 24.7%

CMYK

36.5%, 31.7%, 0.0%, 75.3%

OKLCH

0.2955 0.0366 277.3

Properties

Cool Dark Nearest: RAL 5003 Sapphire Blue

Color Harmonies

Complementary

#282B3F

#3F3C28

Analogous

#28363F

#31283F

#282B3F

Triadic

#282B3F

#3F282B

#2B3F28

Split Complementary

#282B3F

#3F3128

#363F28

Tetradic

#282B3F

#3F2836

#3F3C28

#283F31

Color Blindness Simulation

Original

#282B3F

Protanopia

#29293A

Deuteranopia

#292939

Tritanopia

#283636

Achromatopsia

#2C2C2C

CSS Usage

background-color: #282B3F;
color: #282B3F;
border-color: #282B3F;
Nearest Tailwind: Slate 800 #1E293B

Tailwind Shades

50
#F6F6F9
100
#EAEBF1
200
#D3D5E3
300
#B4B8CF
400
#8C91B6
500
#636A9C
600
#4F557D
700
#3F4464
800
#32354E
900
#27293A
950
#181A25

Contrast Checker

Text on white

13.93:1

AA Pass AAA Pass

Text on black

1.51:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026